Improvement in clamps foe holding smoking pipes foe finishing



'IIMPRGVMENT IN GLAMPS FOR HOLDING SMOKING PIPES FOR FINISIIING.v

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T0 ALL TO WHOM THESE PRESENTS SHALL COME.:

Be it known that I, WILLIAM-KEER, Jr., new residing in the city of Boston, county of Suffolk, and Commonwealthof Massachusetts, have invented an improved Chuck for holding Smoking Pipes while boring their bowls; and do hereby declare the following to bea full, clear, and exact description thereof, duc reference being had to the accompanying drawings, making part of this specification, and in which- ,Figure 1 is a perspectivevview.

Figure 2 is a side elevetion ,fand

Figure 8 is a vertical and longitudinal section of the aforesaid invention, the object of which is to produce a simple and eieetivechuck, or implement for holding a smokinglpipe while turning out or shaping the interior of its bowl, as well as foradjusting and polishing its mountings, or the finish around the mouth of the bowl, or the cover ofthe same, as occasion may require.

The following explanation'shows in what' the invention consists, and the construction ofthe same.

As shown in the accompanying drawings, a is a circular plate of metal, supporting by four or any suitable number of standards, 6 6, &c., a dat metallic ring, c. Placed within the standards b I), and retained in place by them, and resting against the under side of the ring c, is a at auxiliary plate, ci, having a tapering hole, a', made centrally in it to receive the upper part of the bowl of the pipe, whichshould t tightly into it; the bowl being forced'tightly into such hole, by the action of a wedge, e, driven betweonthe bottom of said bowl and the bed-plate a. Both the ringe and the plate d should have a notch, 4cut in one side of them, as shown in'ig. to allow of the tilting of the stem ofthe pipe while introducing the latter into the chuclg. The above-described arrangement of parts is for holding a pipe whose bowl has a tapering form. For holding a pipe, ,the sides of whose bowl are. parallel, the plate d is to be dispensed with, and a. series of set-screws,ff, &c., are to bc'screwed through the standards b Zn, and are to be screwed up against different sides ofthe bowl, to form bearings or suppfirts for it in place of the plate d, the wedge e being'used in the same manner as with the tapering bowl. These screws are screwed tightly up against the sides of theliowl. Where pipes of different lengths are used-inthe chuck, wedges of varying thicknesses must be employed. The same may be said with regard to the plate Las a series of them may be made with their holes corresponding in size to the'diameters of the different pipe bowls. The chuck so made is to be applied, when in use, to the ordinary face-plateof a lathe by an` adjustable connection, such as will allow the pipe bowl to be placedl in line of axis of the lathe arbor, or being centered, as it 'is termed by mechanics. As shown in the accompanying drawings, this connection is made by a screwbolt-passing through an enlarged opening made inthe faceplate, and having a thumb-nut screwed upon ",itsiextremity, asmall platespring, m, being placed between thethumb-nut and the rear side of the face-plate,

to retain the two plates in position while determining thecentre of the pipe bowl. By .placing the'pipe withirn thcchuck, and putting the latter in revolution, we have lonly to place a stick or'small 'tool against the outer edge of the pipe bowl to bring it into line with the axis of the lathe arbor. By stopping the revolutions of the lathe, and screwing up the thumb-nuts tightly, the chuck will be securely clamped tothe face-plate, the spring, as before mentioned, serving in the meantime to confine the two in their -relative positions.

`Having described-my invention, and the manner in which it is or may be carried into effect, what I claim,l and d esire to secure by Letters Patent, `is as follows:

In apparatus as herein described, I claim the combination with the thumb-nuts and enlarged recesses formed in the face-plate of springs, arranged and operating substantially as shown and set forth.' l

Witnesses:

FRED. Genius, RICHARD A. RIPLEY 

